Bird feeder



FIG. 1 is a front perspective view of bird feeder, showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a bottom view thereof; and,

FIG. 7 is a top view thereof.

The broken lines in the drawings illustrate the portions of bird feeder, which form no part of the claimed design. 

CLAIM The ornamental design for bird feeder, substantially as shown and described. 